Host command

[Command("host")]
        public async Task addhost(SocketGuildUser user)
        {
                var account = GuildAccounts.GetAccount(Context.Guild.Id);
                if (account.hostlist.Contains(Context.User.Id))
                {
                    account.hostlist.Add(user.Id);
                    GuildAccounts.SaveAccounts();
                    var embed = new EmbedBuilder();
                    embed.WithTitle("Success!!");
                    embed.WithColor(okcolor);
                    embed.WithDescription($"{user.Mention} is now a host! Welcome!");
                    await Context.Channel.SendMessageAsync("", false, embed.Build());
                }
                else
                {
                    await Context.Channel.SendMessageAsync($"{Program.Client.GetGuild(81680075119931392).Emotes.FirstOrDefault(x => x.Name == "xmark")}You aren't a host!");
                }
        }